Indirect Measurement of Mean Blood Pressure in the Anesthetized Patient

Open Access
Publisher Website
Google Scholar
Abstract
Reliable blood pressure determination is a necessity in the management of the anesthetized patient. Non-invasive methods utilizing occlusive techniques are usually employed because of their low risk and simplicity. The Korotkoff technique, first reported in 1905, continues to be the clinically preferred noninvasive technique. Interest in a noninvasive technique of measuring mean blood pressure has arisen, perhaps because the mean is frequently recorded when invasive techniques are used. In this study, values of invasively and noninvasively determined mean pressure measured simultaneously are compared. Special computer-assisted instrumentation was used for validation of the indirect technique presented. The data suggest that indirect measurement of mean blood pressure by the proposed technique is likely to be more accurate than measurement of systolic and diastolic pressures, using oscillometric or Korotkoff techniques, and considerably more accurate than estimation of mean blood pressure using oscillometric or Korotkoff techniques. Many potential sources of variation remain inadequately understood and controlled. Nonetheless, determination of mean blood pressure using noninvasive techniques appears clinically feasible and useful.

This publication has 2 references indexed in Scilit: